As the saying goes, “Knowledge is power.”  Dror Moreh‘s documentary The Gatekeepers shows that it’s nothing more than a saying.  Knowledge is only power if you know how to use it, and if you’re allowed to use it properly.  Moreh goes inside Israel’s intelligence service, the Shin Bet, and by talking with its former directors, the documentary uncovers the futility of intelligence in the face of terrorism, politics, and human nature.  Moreh attempts to show how the agency has to keep shifting its identity and purpose but still manages to come up short when tasked with stopping the major attacks.  However, in exploring the past, The Gatekeepers ultimately reveals nothing new about the present.